Use of heteropolysaccharide S-119 as an antimigrant

Abstract

S-119 is used for the control of migration during pad dyeing of fabrics.

What is claimed is: 
     
       1. In an aqueous dye-bath liquor suitable for impregnating substrates, the improvement that comprises the incorporation in said dye-bath liquor, as an antimigrant, of Heteropolysaccharide S-119 at a concentration ranging from about 0.001% to about 1.00% by weight based on the total weight of said dye-bath liquor. 
     
     
       2. The dye-bath of claim 1, wherein the S-119 concentration ranges from 0.005% to 0.5%. 
     
     
       3. The dye-bath of claim 1 further comprising an antimigrant selected from the group consisting of tamarind kernel powder and cold-water soluble tamarind kernel powder wherein the weight ratio of S-119 to antimigrant ranges from 5:95 to 95:5. 
     
     
       4. The dye-bath of claim 3 wherein the antimigrant is cold-water soluble tamarind kernel powder. 
     
     
       5. A process for the dyeing of substrates that comprises: a. impregnating the substrate with an aqueous dye-bath liquor which comprises Heteropolysaccharide S-119 at a concentration ranging from about 0.001% to about 1.00% by weight based on the total weight of said dye-bath liquor;   b. drying said substrate; and   c. fixing said dry, dye-impregnated substrate.   
     
     
       6. The process of claim 5 wherein the heteropolysaccharide concentration ranges from 0.005% to 0.5%.